Shuttle-motion for looms.



PATENTED NOV. 3, 19 03.

W. H. WHITE.

SHUTTLE MOTION FOR LOOMS.

APPLICATION FILED FEB. 7, 1900 N0 MODEL.

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NITED STATES l atented l\Toviember 3, 1903;

PATENT omen WILLIAM H. wn rir, oF BiIRRILLvILhn, RHonE IsLANi).

SHUTTLE-MOTION l-OR LooMs;

SPECIFIC ATION forming part of Letters Patent No. 743,123, dated November 3, 1903. Applicationfiled February 7, 1900- Serial No. 4.394. (No model.)

.the sword, and lathe, the latter having the shuttle-races, upper race and lower race, hand-rail, and two sets of reeds, these features being of old form. Fig. is a view of my invention, showing in front elevation one end of the loom-lathe, two shuttle-boxes, a pickerstick and cross-head thereon, two

pickers carried by said cross-head, and also the adjacent parts of thedevice. Fig. 3 is a rear elevation of said cross-head. Fig. is a front elevation thereof. Fig. 5 is a side elevation thereof. Fig. 6 is adetail view.

My invention relates to looms for weaving cloth; and it consists in the novel construction and combination of the several elements hereinafter particularly described, and set forth in the claims.

In the drawings, 1 is the lathe-sword, 2 the lathe, and 3 the hand-rail. Thesword is pivotally mounted at 4 to the frame 5. The picker-stick stand 6 extends from the frame 5, and on said stand 6 the picker stick 7 is pivotally mounted at 8. A strap 9, fastened to the picker-stick 7 near the bottom thereof by the screw 10,passes over the rounded lower end of the pickerstick, and a spiral spring 11 is hooked at one end to said strap and at the other end to an eye 12 of a plate 13,bolted to the floor.

The sweep-arm of the loom is shown at 14, and at its upper end it is pivotally connected to the sweep-stick 15, which has at its outer end the lug-strap 16, surrounding the pickerstick 7 and kept in position by the strap 17, the latter being secured at 18 to the pickerstick 7.

There are two shuttle-boxes 19 and 20 and an upper race-plate 21. A set of reeds 22 extends from the lathe 2 to the race plate 21,

and a set of reeds 23 extends from the race plate 21 to the hand-rail 3.

The picker 24, Fig. 1,'is movable 011 the race-rod 25 and is connected by the picker-.

strap 26 to the picker-stick 7. The race-rod 25 is supported in the bearings 27 28. The shuttle 29 is shownin the shuttle-box in Fig.6. In order to weave two strips of cloth at the same time upon the loom, I use two shuttles 29 of ordinary construction, one moving on the shuttle-race of the lathe 2, as heretofore, and the other on the upper race-plate 21. The upper shuttle is driven from one shuttlebox 20 on one end of the loom lathe to another shuttle box on the opposite end of the loom-lathe by means of pickers 30, and the lower shuttle is driven from one shuttle-box 19 on one end of the loom-lathe to another shuttle-box on the opposite end of the loomlathe by means of the pickers 24. The picker 30 is mounted on the race -rod 31, which is supported by the bearings 32 33. The picker 30 is secured to the upper end of the picker stick 7 by the picker-strap 3 1. V

The construction shown in Fig. 1 is old, but the construction shown in Figs. 2 to 6, inclusive, embodies my invention herein described and claimed. A cross-head 35 receives motion from each picker-stick 7. The construction of the crosshead is shown in detail in Figs. 3, 4, and 5, where it is seen that it consists of a plate substantially rectangular in outline, near the center of which a block 36, somewhat elliptical in peripheral outline, is fastened by means of a bolt 37. On the back of the plate of the cross-head are secured by screws 38 two bearings 39 40 at the top and two others 41 42 at the bottom, by which the cross-head 35is mounted and slidable on the race-rods 25 31. The bearing 39 is semitubular, and the bearing 40 is a plate with a half-round longitudinal groove. In like manner the bearing 12 is semitubular, and the bearing 41 is a plate with a half-round longitudinal groove. These bearings have oilers 43 4:4: thereon to lubricate them, as seen in Figs. 3 and 5. The cross-head 35 has on one side at the top and bottom an angularly-projecting lip 45. A strap or loop 46 is fastened by screws 47 to the picker-stick 7, and the block 36 of the crosshead 35 is between the strap 46 and the pickerstick 7. Picker-straps 34: connect the crosshead 35 with the. picker 30, being fastened at the ends thereof by the screws 48 49, and picker-straps 26 connect the cross-head 35 with the picker 24, being fastened at the ends thereof by the screws 50 51.

Having thus enumerated and described the said parts of my improved loom, I will now explain the operation thereof. The warps for the lower strip of cloth pass from the yarn-beam over the whip-roll, through the eyes of the heddles of the harness-frame, thence through the reeds 22, over the top or raceway of the lathe 2, where by the shuttle driven on said raceway alternately from side to side from one shuttle-box 19 to the other by the force of the picker and picker-stick a filling-thread is woven in the warps in the shed thereof made by the rise and fall of the harnesses, as usual. The cloth so woven passes over the breast-beam through the aperture therein and is wound on the cloth-roll. At the same time the warps for the upper strip of cloth pass from an upper yarn-beam over an upper whip-roll, through upper eyes of the heddles of the harness-frame, thence through the reeds 22, over the top of the upper race-plate 21, carried by the swords 1, whereby the shuttle driven on said upper race-plate 21 alternately from side to side from one shuttle-box 20 to another by the force of the picker and picker-stick a fillingthread is woven in the upper warps in the shed thereof made by the rise and fall of the harnesses. The upper strip of cloth so woven passes overan upper beam and past the front surface of the lower breast-beam and is wound on the cloth-roll.

In the construction shown in Fig. 1 the pickers 24 and 30 move with different velocities, because they are located at different radial distances from the pivotal point 80f the picker-stick. Therefore in order to secure a uniform velocity for the upper and lower pickers I prefer to use the cross-head 35, traveling on the race-rods 31 and carrying the two pickers 24: movable on the same racerods, respectively, as shown in Fig. 2. In this construction the picker-stick 7 delivers the blow upon the one block 36, which, being connected by the bolt 37 to the cross-head 35, causes the latter to move on the race-rods 25 81, thus drivin g the two pickers 24C 30 on said rods, respectively, at the same time and with the same velocity and power, and consequently the two shuttles also. As the picker-stick 7 moves back the strap or loop 46, attached thereto and which passes over the block 36, brings back by means of said strap the crosshead 35 to its former position, because said block 36 is bolted to the cross-head 35, as shown. The angularly-projecting lips of the cross-head 35 extend therefrom sufficiently to deliver the blows upon the two pickers 24: 30 near the central axial line thereof. I am thus able to weave two strips of cloth on one loom at the same time, and consequently diminish the cost and labor of the production of any stated quantity.

I claim as a novel and useful invention and desire to secure by Letters Patent 1. In combin ation with the picker-stick of a loom, two shuttle-boxes one above the other in which said picker-stick is capable of an oscillating movement, a cross-head having two bearing-plates on its rear surface, which are each provided with a half-round longitudinal groove, a semitubular bearing for each of the bearing-plates first aforesaid, provided with longitudinal flanges, fastenings for said bearing-plates and semitubular bearings connecting them with the cross-head, two race-rods for said shuttle boxes, on each of which rods one of said bearing-plates and its companion semitubular bearing is mounted, a picker mounted movably on each race-rod, a central picker-strap connecting each picker with the cross-head, a central block on said cross-head, two an gularly-proj ectin g lips from the rear surface of said cross-head located and arranged to strike against said pickers, respectively, and a strap passing over said block and fastened at both ends to the pickerstick, substantially as shown.

2. In combination with the picker-stick of a loom,two shuttle-boxes,one above the other, in which said picker-stick is capable of an oscillating movement, a picker, a cross-head having two bearing-plates on its rear surface, which are each provided with a half-round longitudinal groove, a semitubular bearing for each of the bearing-plates first aforesaid,

fastenings for said bearing-plates and semitubular bearings connecting them with the cross-head, an oiler for each of said semitubular bearings having a duct leading through it to the interior surface thereof, two race-rods for said shuttle-boxes, on each of which rods one of said bearing-plates and its companion semitubular bearing is mounted, a picker mounted movably on each race-rod, a pickerstrap connecting each picker with the crosshead, a central block on said crosshead, two angularly-projecting lips from the rear surface of said cross-head located and arranged to strike against said pickers, respectively, and a strap passing over said block and fastened at both ends to the picker-stick, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM H. \VHITE.

Witnesses:

WILLIAM P. NIoHoLs, WILLIAM C. HILL. 

